Chemical apparatus.



H. B. SNELL. CHEMICAL APPARATUS.

APPLICATION FILED JAN.8 1906. BENEWED NOV.5. 1906.

PATBNTBD JAN. 1, 1907.

said apparatus for the '3 5 lthe lower portion tially so.

UNITED STATES4 PATENT OEEIOE. HORAOE! s. sIvELL, or JAOKsoNvILLE, FLORIDA.

I CHEMICAL APPARATUS.

Specification of Letters Patent.

:Patented Jan. 1, 1907,

Aplicatio filed l'anuary 8,1906.l 4Renewed November 5, 1996. Serial No` 342,134-

To all whom it may con/cern.:l

Be it known that I, HORACE B. SNELL, a

citizen of the United States, residinor at J' ackv sonville, in the county of Duval and State of 5 Florida, have invented new and useful Improvements in Chemical Apparatus, of which the following is a specification. v

-This invention relates to chemical apparatus.

The apparatusmay beused with advantage in many different ways. For examdple, wood substantially in the form ofsaw ust may be deli...=:ed into the vessel of the appar.

ratus, and steam mayalso be delivered 'in purpose of extracting Oils and other matters from such wood, the

oil thus extracted being subsequently treat-z" ed, as by distillation. y

One of the principal features of the inverizo tion is the production of a simple and eiect ve means for preventing the material in the vessel being blown 'therefrom during the steaming or other treatment thereof.

` In the drawing accompanying and forming z 5 part of this speciiicationI illustrate, in vertical,` central sectional elevation, an apparatus embodying my Y Invention, which, to enable those skilled in the art to practice said invention, I will fully set forth in the following description, while the novelty of the invention will be included in the claims succeeding said description. .".The apparatus shown in the drawing includes in its make-,upa vessel oratank, as 2, of which tapers inward, as .I have shown as surrounding the tapei-ed portion' ofthe vessel or tank 2 a ring, as 4 constituting a part of the vessel or tank and through which the mass of material after 4o treatment in the tank is discharged.

Any suitable door may controlling the discharge of material from the vessel or tank 2. The door shown is designated by 5 and is of the drop-down type, it

be provided for being hinged exteriorly of the ring 4 near the lower edge of the latter. When the door is closed, it stands horizontally, or substan- When, however, it is opened to its full extent, it assumes a steep pitch, so as to 5o uncover to the greatest possible extent the discharge-opening of the vessel, which, as @will be iinderstood, is formed by the ring 4. The ring is vertically disposed, and in its under edge, which is laterally widened, is set an annular packing or gasket, as 6, of rubber or other 'sultable material and against which pipe. The lower end oft the door when shut fits, so that during such l necessary to describe the same in detail.

Into the top of the vessel a steam-admission pipe, as 8, may lead, WlIileI may con nect with the body of the vessel at different levels other pipes, as 9, for the. admission of steam', the constructionbeing such that the steam will be delivered downwardly throu h i the mass in the receptacle, and should t e mass be sawdust the downwardly-directed steam will extract the oils from thc sawdust, the steamladen with the oils being received by a discharge-pipe, as 10, opening into the interior of the vessel through the ring 4. I may, as common in the art, open up by suitable agitating means 'paths for the steam, so as to assure the ticle of the mass.

I have shown as extending perpendicular from the upper or inner side of the door an annular flange, as 11, which is provided with a ymultiplicity of perforations or holes for the passage of steam., but not suiliciently large for the passage therethrough of the particles of the material being treated in the tank or vessel 2. The ilange 11, therefore, permits free egress of the steam mixed with oils or other liquid material of the discharge-pipe 10, but prevents the solid material from bein blown into said e tapered portion of the vessel has a Hangs, as 12, which ex` tends into the space defined by the iiange 11, theflatter being separated from the ring 4. The flange 12, therefore, prevents material in the vessel or tank from passing into the space between the ange 11 and ring 4. What'I claim is 1. In an apparatus of the class described, I

a tank, a door for the tank, having an annular perforated flange, said iange when the door is closed being separated from the tank,

a discharge-pipe leading from the tank, the

perforated flange serving topermit steam to enter the pipe but preventingsolid matter from being'bl own thereinto, and means upon steam reaching every par-- from the tank by way 'y IOO ' the tank for preventing solid matter in the vessel from entering the space between the flange and tank.,

2. In an apparatus of the class described, a tank havingan inwardly-tapered portion, a door for the tank having an annular perforated ange, said flange when the door is closed being se arated from the tank, the in- Wardly-tapere portion of the tank being anged to extend into the space d'ened by the flange, and a discharge-pipe leading from the tank substantially in horizontal linewith the flange..

3. In an apparatus of the class described, a tank having an inwardly-tapered lower ortion', a-vertically-disposed ring fastene to extend in the space defined by the perforated' flange, and a ldischarge-pipe for the tank leading from said ring.

In testimony whereof I have hereunto set my handjn presence of tWo subscribing Witnesses.

vHORACE B. SNELL.

Witnesses:

JOHN F. FRANZ, .L R. C. MIDDLEKAUFF 

